US 2022/0066245 A1 · LIGHT MODULATION DEVICE

Abstract

Provided is a light modulation device includes a substrate, a lower clad layer disposed on the substrate, a core layer disposed on the lower clad layer to extend in a first direction which is parallel to a top surface of the substrate, and an upper clad layer covering the core on the lower clad layer. The core layer includes a waveguide layer extending in the first direction; and photonic crystal structures disposed in the waveguide layer and periodically arranged along the first direction.

Claims13

Dependent claims

A light modulation device comprising:

a substrate;
a lower clad layer disposed on the substrate;
a core layer disposed on the lower clad layer to extend in a first direction which is parallel to a top surface of the substrate;
and
an upper clad layer covering the core on the lower clad layer,
wherein the core layer comprises:
a waveguide layer extending in the first direction;
and
photonic crystal structures disposed in the waveguide layer and periodically arranged along the first direction.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/464,470Filed 1 Sep 2021

Priority

KR 10-2020-01118072 Sep 2020

Published

3 Mar 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

G02F 1/035
Based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect: in an optical waveguide structure
G02F 1/0136
For the control of the intensity, phase, polarisation or colour: for the control of polarisation, e.g. state of polarisation [SOP] control,…
G02F 2202/32
Materials and properties: photonic crystals
G02F
Optical devices or arrangements for the control of light by modification of

Light modulation device

Life of this patent

Light modulation device

Life of this patent

Abstract

Claims13